From bcd880c8e4085c943a055bcb2e2dc78feda33bea Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Sun, 19 May 2019 19:04:07 +0300
Subject: Modularise image handling

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 images/CrOS.sh   | 48 ++++++++++++++++++++++++++++++++
 images/FIT.sh    | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 images/srec.sh   | 18 ++++++++++++
 images/uImage.sh |  9 ++++++
 4 files changed, 158 insertions(+)
 create mode 100644 images/CrOS.sh
 create mode 100644 images/FIT.sh
 create mode 100644 images/srec.sh
 create mode 100644 images/uImage.sh

(limited to 'images')

diff --git a/images/CrOS.sh b/images/CrOS.sh
new file mode 100644
index 0000000..eb9ff05
--- /dev/null
+++ b/images/CrOS.sh
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+if [[ $arch != arm64 && $arch != x86 ]] ; then
+	echo "CrOS image unsupported on architecture $arch"
+	exit 1
+fi
+
+source "${kbuild_root}/images/FIT.sh" || exit 1
+
+make_CrOS_image() {
+	local boot_dir=$output_dir/arch/$arch/boot
+	local bootloader
+	local config
+	local vmlinuz
+
+	if [[ $arch == arm64 ]] ; then
+		make_FIT_image
+		vmlinuz=$boot_dir/kernel_fdt.itb
+	elif [[ $arch == x86 ]] ; then
+		vmlinuz=$boot_dir/bzImage
+	fi
+
+	if [[ -f $opt_bootloader ]] ; then
+		bootloader=$opt_bootloader
+	else
+		dd if=/dev/zero of=$boot_dir/bootloader bs=512 count=1
+		bootloader=$boot_dir/bootloader
+	fi
+
+	if [[ -f $opt_cmdline_file ]] ; then
+		config=$opt_cmdline_file
+	else
+		echo "$CMDLINE" > $boot_dir/cmdline
+		config=$boot_dir/cmdline
+	fi
+
+	vbutil_kernel \
+		--pack $boot_dir/vmlinuz.image \
+		--version 1 \
+		--vmlinuz $vmlinuz \
+		--arch $arch \
+		--keyblock /usr/share/vboot/devkeys/kernel.keyblock \
+		--signprivate /usr/share/vboot/devkeys/kernel_data_key.vbprivk \
+		--config $config \
+		--bootloader $bootloader
+}
+
+image_file=$output_dir/arch/$arch/boot/vmlinuz.image
diff --git a/images/FIT.sh b/images/FIT.sh
new file mode 100644
index 0000000..0ed5482
--- /dev/null
+++ b/images/FIT.sh
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+make_FIT_image() {
+	local kernel_its=$output_dir/arch/$arch/boot/kernel_fdt.its
+
+	cat <<EOF > $kernel_its
+/dts-v1/;
+/ {
+	description = "Kernel + FDT image for $board board";
+	#address-cells = <1>;
+
+	images {
+		kernel {
+			description = "Linux kernel";
+			data = /incbin/("$output_dir/arch/$arch/boot/$image_kernel");
+			type = "kernel";
+			arch = "$arch";
+			os = "linux";
+			compression = "none";
+			load = <$LOADADDR>;
+			entry = <$LOADADDR>;
+			hash-1 {
+				algo = "crc32";
+			};
+			hash-2 {
+				algo = "sha1";
+			};
+		};
+EOF
+
+	local dtb
+
+	for dtb in $DTBS ; do
+		local src=${dtb/:*/}
+		local dst=${dtb/*:/}
+		dst=${dst/*\//}
+
+		cat <<EOF >> $kernel_its
+		fdt-$dst {
+			description = "Flattened Device Tree blob $dst";
+			data = /incbin/("$output_dir/arch/$arch/boot/dts/$src");
+			type = "flat_dt";
+			arch = "$arch";
+			compression = "none";
+			hash-1 {
+				algo = "crc32";
+			};
+			hash-2 {
+				algo = "sha1";
+			};
+		};
+EOF
+	done
+
+	local config=$(echo $DTBS | sed 's/.*[:/]//')
+	cat <<EOF >> $kernel_its
+	};
+
+	configurations {
+		default = "conf-$config";
+EOF
+	for dtb in $DTBS ; do
+		local dst=${dtb/*:/}
+		dst=${dst/*\//}
+
+		cat <<EOF >> $kernel_its
+		conf-$dst {
+			description = "Boot Linux kernel with $dst blob";
+			kernel = "kernel";
+			fdt = "fdt-$dst";
+		};
+EOF
+	done
+
+	cat <<EOF >> $kernel_its
+	};
+};
+EOF
+
+	PATH="$output_dir/scripts/dtc:$PATH" mkimage -f $kernel_its ${kernel_its/its/itb}
+}
+
+image_file=$output_dir/arch/$arch/boot/kernel_fdt.itb
diff --git a/images/srec.sh b/images/srec.sh
new file mode 100644
index 0000000..6f89b92
--- /dev/null
+++ b/images/srec.sh
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+make_srec_image() {
+	local image=$output_dir/arch/$arch/boot/$image_kernel
+
+	cat $image | lzma -z -e > $image.xz
+	objcopy -I binary -O srec --srec-forceS3 --srec-len 516 \
+		$image.xz $image.xz.srec
+
+	for dtb in $DTBS ; do
+		local src=${dtb/:*/}
+
+		objcopy -I binary -O srec --srec-forceS3 --srec-len 516 \
+			$src $src.srec
+	done
+}
+
+image_file=$output_dir/arch/$arch/boot/$kernel_image.xz.srec
diff --git a/images/uImage.sh b/images/uImage.sh
new file mode 100644
index 0000000..40e7cf3
--- /dev/null
+++ b/images/uImage.sh
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+make_uImage_image() {
+	mkimage -A $arch -O linux -T kernel -C none -a $LOADADDR -e $LOADADDR \
+		-n "Linux-${version}" -d $output_dir/arch/$arch/boot/$kernel_image \
+		$output_dir/arch/$arch/boot/uImage
+}
+
+image_file=$output_dir/arch/$arch/boot/uImage
-- 
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